Home / 205,447,515.60-308,216,892.60-69,129,051.60

Finding the Fourth Proportional to 205,447,515.60, 308,216,892.60 and 69,129,051.60

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Solution

The fourth proportional to 205,447,515.60, 308,216,892.60 and 69,129,051.60 is: 103,708,927.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,447,515.60 : 308,216,892.60 = 69,129,051.60 : x
  2. Step 2: Convert to fraction form
    205,447,515.60/308,216,892.60 = 69,129,051.60/x
  3. Step 3: Cross multiply
    205,447,515.60x = 308,216,892.60 × 69,129,051.60
  4. Step 4: Simplify right side
    205,447,515.60x = 21,306,741,472,537,056
  5. Step 5: Solve for x
    x = 21,306,741,472,537,056/205,447,515.60
  6. Step 6: Final answer
    x = 103,708,927.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.